Home / 21,259,154.40-31,873,283.28-8,475,825.12

Finding the Fourth Proportional to 21,259,154.40, 31,873,283.28 and 8,475,825.12

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Solution

The fourth proportional to 21,259,154.40, 31,873,283.28 and 8,475,825.12 is: 12,707,578.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259,154.40 : 31,873,283.28 = 8,475,825.12 : x
  2. Step 2: Convert to fraction form
    21,259,154.40/31,873,283.28 = 8,475,825.12/x
  3. Step 3: Cross multiply
    21,259,154.40x = 31,873,283.28 × 8,475,825.12
  4. Step 4: Simplify right side
    21,259,154.40x = 270,152,375,081,499.97
  5. Step 5: Solve for x
    x = 270,152,375,081,499.97/21,259,154.40
  6. Step 6: Final answer
    x = 12,707,578.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.